Vocabulary
What is pressure caused by the weight of the atmosphere?
Atmospheric pressure
True or False: The weight of the object has nothing to do with the buoyant force in Archimedes Principle?
True
What happens when the buoyant force is equal to the displaced water?
It sinks
What do all fluids do?
Exert pressure
What is the formula of pressure?
Pressure=Force/Area
What is the SI unit of pressure?
Pascal
Who discovered that a change in pressure at any point in an enclosed fluid will be transmitted equally to all parts of that fluid?
Pascal
What happens when the buoyant force of an object is greater than the objects weight?
It buoys up
What are 3 examples of a fluid?
water, gas, oil, oxygen, carbon dioxide
What does pressure depend on?
The depth of the fluid
What is the amount of matter in a given space?
Density
Who discovered that as the speed of a moving fluid increases its pressure decreases?
Bernoulli
What happens when the objects weight is equal to the buoyant force?
It floats
Why are fluids able to flow?
The particles in fluids move easily past each other
Where is pressure almost nonexsistent?
At the top of the atmosphere
What is the upward force that fluids exert on all matter?
Buoyant Force
What kind of devices use liquids to transmit pressure from one point to another in pascal's principle?
Hydraulic Devices
What principle is the buoyant force based off of?
Archimedes
What is any material that can flow and take the shape of its container?
Fluid
What happens to the pressure as the atmosphere gets deeper?
It increases
What is the upward force on an object that opposes the downward pull of gravity?
Lift
Who discovered that the buoyant force on an object is the fluid is an upward force equal to the weight of the volume of fluid that the object displaces?
Archimedes
What of the displaced fluid determines the buoyant force on an object?
Weight
What is an important property of fluids?
They exert pressure evenly in every direction
True or False: Fluids flow from regions of low pressure to regions of high pressure when you sip through a straw?
False